Heterolayered carbon allotrope architectonics <i>via</i> multi-material 3D printing for advanced electrochemical devices

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Date
2023-12-31
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ORCID
0000-0001-6480-1569
 0000-0002-8034-7404
 0000-0001-9529-6980
 0000-0001-6840-6590
 0000-0001-5846-2951
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Referee
Mark
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TAYLOR & FRANCIS LTD
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Abstract
3D printing has become a powerful technique in electrochemistry for fabricating electrodes, thanks to readily available conductive nanocomposite filaments, such as those based on carbon fillers (i.e., carbon nanotubes (CNTs) or carbon black (CB)) within an insulating polymeric matrix like polylactic acid (PLA). Inspired by inorganic heterostructures that enhance the functional characteristics of nanomaterials, we fabricated hetero-layered 3D printed devices based on carbon allotropes using a layer-by-layer assembly approach. The heterolayers were customised through the alternate integration of different carbon allotrope filaments via a multi-material 3D printing technique, allowing for a time-effective method to enhance electrochemical performance. As a first demonstration of applicability, CNT/PLA and CB/PLA filaments were utilised to construct ordered hetero-layered carbon-based electrodes. This contrasts with conventional methods where various carbon species are mixed in the same composite-based filament used for building electrochemical devices. Multi-material 3D-printed carbon electrodes exhibit improved electrochemical performance in energy conversion (e.g., hydrogen evolution reaction or HER) and sensing applications (e.g., ascorbic acid detection) compared to single-material electrodes. This work paves the way for manufacturing advanced 3D-printed heterolayered electrodes with enhanced electrochemical activity through multi-material 3D printing technology.
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Keywords
Additive manufacturing, fused deposition modelling, electrocatalysis, electrochemistry, carbon allotropes
Citation
Virtual and Physical Prototyping. 2023, vol. 18, issue 1, 14 p.
https://www.tandfonline.com/doi/full/10.1080/17452759.2023.2276260
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Peer-reviewed
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Published version
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en
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Creative Commons Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
DOI
10.1080/17452759.2023.2276260
URI
https://hdl.handle.net/11012/245208
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Energie budoucnosti a inovace
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